RD-6600

Technical Service Instructions

RD-6600

SI-5VG0B

Rear Derailleur

General Safety Information

WARNING

• Use neutral detergent to clean the chain. Do not use alkali-based or acid based detergent such as rust cleaners as it may result in damage and/or failure of the chain.

• Use the reinforced connecting pin only for connecting the narrow type of chain.

• If connecting pins other than reinforced connecting pins are used, or if a reinforced connecting pin or tool which is not suitable for the type of chain is used, sufficient connection force may not be obtained, which could cause the chain to break or fall off.

Chain

Reinforced connecting pin

Chain tool

10-speed super narrow chain such as

CN-7801 / 6600 with groove (3) TL-CN32 / TL-CN23

• If it is necessary to adjust the length of the chain due to a change in the number of sprocket teeth, make the cut at some other

Link Pin

Reinforced

Connecting Pin Link Pin place than the place where the chain has been joined using a reinforced connecting pin. The chain will be damaged if it is cut at a place where it has been joined with a reinforced connecting pin.

• Be sure to check that the connecting pin protrudes uniformly from the link surfaces at both ends after the chain has been joined.

• Check that the tension of the chain is correct and that the chain is not damaged. If the tension is too weak or the chain is damaged, the chain should be replaced. If this is not done, the chain may break and cause serious injury.

• Obtain and read the service instructions carefully prior to installing the parts. Loose, worn, or damaged parts may cause injury to the rider. We strongly recommend only using genuine Shimano replacement parts.

• Read these Technical Service Instructions carefully, and keep them in a safe place for later reference.

Note

• If gear shifting operations cannot be carried out smoothly, clean the derailleur and lubricate all moving parts.

• If the amount of looseness in the links is so great that adjustment is not possible, you should replace the derailleur.

• You should periodically clean the derailleur and lubricate all moving parts (mechanism and pulleys).

• If gear shifting adjustment cannot be carried out, check the degree of parallelism at the rear end of the bicycle. Also check if the cable is lubricated and if the outer casing is too long or too short.

• If you hear abnormal noise as a result of looseness in a pulley, you should replace the pulley.

• For smooth operation, use the specified outer casing and the bottom bracket cable guide.

• Grease the inner cable and the inside of the outer casing before use to ensure that they slide properly.

• Use a frame with internal cable routing is strongly discouraged as it has tendencies to impair the SIS shifting function due to its high cable resistance.

• The tension pulley has a mark which indicates the direction of rotation. The side with the arrow is the front side.

• The end of the outer casing which has the aluminum cap should be at the derailleur side.

4-mm cap

Derailleur side

Aluminum cap Plastic cap or 4-mm cap

• Parts are not guaranteed against natural wear or deterioration resulting from normal use.

• For maximum performance we highly recommend Shimano lubricants and maintenance products.

• For any questions regarding methods of installation, adjustment, maintenance or operation, please contact a professional bicycle dealer.

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In order to realize the best performance, we recommend that the following combination be used.

Series

Shifting lever

Gears

Outer casing

Rear derailleur

Type

Freehub

Cassette sprocket

Chain

Bottom bracket cable guide

Double

Triple

ULTEGRA

ST-6600

ST-6603

10

SIS-SP41

RD-6600

SS / GS

FH-6600

CS-6600

CN-6600

SM-SP17

Specifications

Type

Total capacity

Largest sprocket

Smallest sprocket

Front chainwheel tooth difference

SS

29 teeth or less

27T

11T

14 teeth or less

GS

37 teeth or less

27T

11T

22 teeth or less

Installation of the rear derailleur

When installing, be careful that deformation is not caused by the

B-tension adjustment screw coming into contact with the dropout tab.

5 mm Allen key

Bracket spindle tightening torque:

8 - 10 N·m

{70 - 86 in. lbs.}

Dropout tab

B-tension adjustment screw

Chain length

Smallest sprocket

Largest chainring

● In case of a triple front chainwheel

Chain

Guide pulley

Tension pulley

90°

Right angle to the ground

If the smallest sprocket is

15T or 16T

Add 2 links (with the chain on both the largest sprocket and the largest chainring)

Largest sprocket

Chain

Not OK OK

Largest chainring

+2 links

Stroke adjustment and cable securing

1. Top adjustment

Turn the top adjustment screw to adjust so that the guide pulley is below the outer line of the smallest sprocket when looking from the rear.

1

2

Outer line of smallest sprocket

1 2

Top adjustment screw Guide pulley

2. Connection and securing of the cable

Connect the cable to the rear derailleur and, after taking up the initial slack in the cable, re-secure to the rear derailleur as shown in the illustration.

Pull

Tightening torque:

5 - 7 N·m {44 - 60 in. lbs.}

Note:

Be sure that the cable is securely in the groove.

Groove

5. SIS Adjustment

Operate the shifting lever several times to move the chain to the 2nd sprocket. Then, while pressing the lever just enough to take up the play in the lever, turn the crank arm.

Play

3

2

When shifting to 3rd

Lever (A)

When no sound at all is heard

3. Low adjustment

Turn the low adjustment screw so that the guide pulley moves to a position directly in line with the largest sprocket.

Largest sprocket

Guide pulley

2 1

1 2

Low adjustment screw

4. How to use the B-tension adjustment screw

Mount the chain on the smallest chainring and the largest sprocket, and turn the crank arm backward. Then turn the Btension adjustment screw to adjust the guide pulley as close to the sprocket as possible but not so close that it touches.

Next, set the chain to the smallest sprocket and repeat the above to make sure that the pulley does not touch the sprocket.

Largest sprocket Smallest sprocket

2

2

1

1 1 2

B-tension adjustment screw

Tighten the outer cable adjusting barrel until the chain returns to the 2nd sprocket. (clockwise)

Loosen the outer casing adjustment barrel until the chain touches the

3rd sprocket and makes noise. (counter clockwise)

Outer casing adjustment barrel

Outer casing adjustment barrel

Best setting

The best setting is when the shifting lever is operated just enough to take up the play and the chain touches the 3rd sprocket and makes noise.

* Return the lever to its original position (the position where the lever is at the 2nd sprocket setting and it has been released) and then turn the crank arm clockwise. If the chain is touching the 3rd sprocket and making noise, turn the outer casing adjustment barrel clockwise slightly to tighten it until the noise stops and the chain runs smoothly.

Operate lever to change gears, and check that no noise occurs in any of the gear positions.

For the best SIS performance, periodically lubricate all power-transmission parts.

One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003

Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222

3-77 Oimatsu-cho, Sakai, Osaka 590-8577, Japan

Please note: specifications are subject to change for improvement without notice.

(English)

© Jun. 2004 by Shimano Inc. XBC SZK Printed in Japan t